• Whether you''re working or gaming, be completely comfortable in this ergonomic mesh back chair that features transparent, breathable mesh across the back allowing air to circulate to keep you cool. Built-in lumbar support improves your posture and helps prevent back strain and muscle fatigue. Padded flip-up armrests relieves pressure from your shoulders and neck and rotate 90 degrees out of the way so you can move this mesh task chair closer to your desk. The contoured seat is padded with 3" of foam and covered with black mesh upholstery. A true asset in any space, this computer chair boasts a contrasting white frame and 360 degree swivel capability paired with transparent rubber skate style wheels with ball bearing motion to access multiple surfaces without strain. The pneumatic seat height adjustment lever allows the seat to raise and lower to each individual''s needs. Turn the tilt tension adjustment knob to increase or decrease the amount of force needed to rock or recline. Don''t worry about spills from your morning coffee or the lunch you ate at your desk, this mesh office chair with lumbar support cleans easily with a solvent base cleaner, no water needed. Whether it''s a day filled with meetings, home office paperwork or marathon gaming sessions, this stylish mid-back mesh swivel task chair with upgraded polyurethane tires will keep you cool and comfortable throughout your busy day.• Contemporary Mid-Back Task Office Chair• Ventilated Mesh Back with Built-In Lumbar Support• Padded Mesh Upholstered Seat and Flip-Up Arms• Pneumatic Height Adjustable 360� Swivel Waterfall Seat• Tilt Lock Mechanism rocks/tilts the chair and locks in an upright position• Tilt Tension Adjustment Knob adjusts the chair''s backward tilt resistance• Heavy Duty Nylon Base with Transparent Roller Wheels• Clean with Solvent Based Cleaner No Water Needed• Assembles in Under 30 Minutes with Included Materials• Single Unit Weight: 36 lbs• Item Width: 24.5 Inches• Item Depth: 25.5 Inches• Item Height: 41.25 Inches• Back Size: 17"W x 23"H• Seat Size: 20.25"W x 19"D• Seat Height: 17.25" - 20.75"H• Seat Thickness: 3• Weight Capacity: 250 lbs